单词：demarcating
v set, mark, or draw the boundaries of something
demarcate的用法和样例：
例句
- The playing area is demarcated by a white line.运动场地以白线为界。
- delimit定界限
- saw锯
- define规定
- mark out制定
- delineate描绘
- draw拖
- fix使 ... 固定
- establish建立
- determine决定
- separate分开的
- distinguish区别
- differentiate区分
- isolate使孤立
- discriminate区分
- segregate分离
- delimitate划界限
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